CVE-2026-54403 - Vulnerability Details - OpenCVE

A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices running UniFi OS to bypass authentication of such UniFi OS devices or instances.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

No data.

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References

Link	Providers
https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc

History

Thu, 02 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 02 Jul 2026 15:15:00 +0000

Type	Values Removed	Values Added
Description		A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices running UniFi OS to bypass authentication of such UniFi OS devices or instances.
Weaknesses		CWE-22
References		https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc
Metrics		cvssV3_1 `{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'}`

MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2026-07-02T14:49:16.633Z

Updated: 2026-07-02T16:09:42.714Z

Reserved: 2026-06-13T15:00:00.604Z

Link: CVE-2026-54403

Vulnrichment

Updated: 2026-07-02T16:09:39.664Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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